.header{
    margin: 0 auto;
    display: block;
    text-align: center;
    width: 500px;
    /*border: 1px solid black;*/
}


.header h1{
    font-family: Arial;
    font-weight: bold;
    font-size: 50px;
    margin: 0 auto;
}


.header #newGameButton{
    text-decoration: none;
    display: block;
    font-family: Arial;
    margin: 0 auto;
    padding: 10px 10px;
    color: white;
    border-radius: 10px;
    background-color: #8f7a66;
    width: 100px;
}


.header #newGameButton:hover{
    background-color: #e3e9b0;
}


.header p{
    font-family: Arial;
    font-size: 25px;
    margin: 0 auto;
}


#grid-container{
    width: 460px;
    height: 460px;
    padding: 20px;
    /*border: 1px solid black;*/
    margin: 40px auto;
    background-color: #bbada0;
    border-radius: 10px;
    position: relative;
    /*display: none;*/
}



.grid-cell{
    width: 100px;
    height: 100px;
    border-radius: 6px;
    background-color: #ccc0b3;
    position: absolute;
}


.number-cell{
    font-family: Arial;
    font-size: 60px;
    font-weight: bold;
    line-height: 100px;
    text-align: center;
    border-radius: 6px;
    position: absolute;
}
